101013323209 has 2 divisors, whose sum is σ = 101013323210. Its totient is φ = 101013323208.

The previous prime is 101013323197. The next prime is 101013323261. The reversal of 101013323209 is 902323310101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57215204809 + 43798118400 = 239197^2 + 209280^2 .

It is a cyclic number.

It is not a de Polignac number, because 101013323209 - 2¹⁹ = 101012798921 is a prime.

It is not a weakly prime, because it can be changed into another prime (101013323909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506661604 + 50506661605.

It is an arithmetic number, because the mean of its divisors is an integer number (50506661605).

Almost surely, 2^101013323209 is an apocalyptic number.

It is an amenable number.

101013323209 is a deficient number, since it is larger than the sum of its proper divisors (1).

101013323209 is an equidigital number, since it uses as much as digits as its factorization.

101013323209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 101013323209 in words is "one hundred one billion, thirteen million, three hundred twenty-three thousand, two hundred nine".